Dear Ground Ambulance Providers and Suppliers,
We wanted you to be aware that we posted an updated version of the Medicare Ground Ambulance Data Collection System (GADCS) Report Year 1 and Year 2 Cohort Analysis Codebook.
CMS posted an updated version of the Medicare Ground Ambulance Data Collection System (GADCS) Report Year 1 and Year 2 Cohort Analysis Codebook on our Ambulances Services Center website, and on our Medicare GADCS Resources website. This codebook accompanies the Medicare GADCS Report Year 1 and Year 2 Cohort Analysis and describes the structure and contents of the Medicare Ground Ambulance Data Collection System (GADCS) Year 1 and Year 2 analytic file used to conduct the analyses described throughout the report. This codebook was originally posted on 12/19/2024. We revised some column numberings in the codebook (pages 43-46) to correct minor errors.